155451086280 has 512 divisors, whose sum is σ = 625936896000. Its totient is φ = 33522647040.

The previous prime is 155451086237. The next prime is 155451086293. The reversal of 155451086280 is 82680154551.

155451086280 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 5 + 10 + 8 + 628 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36913375 + ... + 36917585.

It is an arithmetic number, because the mean of its divisors is an integer number (1222533000).

Almost surely, 2^155451086280 is an apocalyptic number.

155451086280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155451086280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312968448000).

155451086280 is an abundant number, since it is smaller than the sum of its proper divisors (470485809720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155451086280 is a wasteful number, since it uses less digits than its factorization.

155451086280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514 (or 4504 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 45.

The spelling of 155451086280 in words is "one hundred fifty-five billion, four hundred fifty-one million, eighty-six thousand, two hundred eighty".